Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: MCLNVA23DS4

Remotes:

Switch Switch name Switch type
WASHDCRKRSA  WASHINGTON  RS 

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
301-741 A Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-741 4 Laurel MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-754 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-23   
301-755 9 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-10-26   
301-760 A Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-760 2 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-07-03   
301-760 3 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-02-14   
301-760 4 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-760 7 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-02-14   
301-761 A Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-761 1 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
301-761 2 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-04-19   
301-761 3 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
301-761 4 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-761 5 Washington Zone 11 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-02-21   
301-768 A Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-768 4 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-825 5 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-825 8 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-825 9 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-828 2 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-830 4 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-830 5 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-04   
301-830 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-08-13   
301-830 8 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-02-14   
301-841 6 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-07-03   
301-841 7 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-08-07   
301-841 8 Washington Zone 2 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-07-27   
301-844 6 Washington Zone 3 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-06-21   
301-850 A Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-850 0 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-04-27   
301-850 1 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-19   
301-850 2 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-01-19   
301-850 3 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-04-19   
301-850 4 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2002-06-04   
301-850 5 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-10-04   
301-850 6 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2012-04-21   
301-850 7 Washington Zone 14 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-08-10   
301-861 A Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-861 0 Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2005-02-20   
301-861 3 Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-10-10   
301-861 4 Waldorf MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-862 6 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2008-02-01   
301-880 A Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-880 0 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
301-880 1 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2004-12-29   
301-880 4 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
301-917 3 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-12-05   
301-965 2 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-04-27   
301-965 3 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-04-27   
301-965 5 Washington Zone 6 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2007-04-27   
301-979 7 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-979 9 Washington Zone 10 MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-12-08   
301-994 4 Lexington Park-Great Mills MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2014-07-04   
443-329 A Waterloo (Washington DC LATA) MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
443-329 2 Waterloo (Washington DC LATA) MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236   2006-02-20   
443-329 4 Waterloo (Washington DC LATA) MD 6119 LEVEL 3 COMMUNICATIONS, LLC - MD 236      
540-242 A Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 3 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 7 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
540-242 8 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-01-29   
540-288 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-03-08   
540-300 4 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2011-10-24   
540-318 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-05-25   
540-318 1 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-07-06   
540-318 2 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-02-15   
540-318 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-09-05   
540-318 7 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-10-10   
540-446 0 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-01-05   
540-446 2 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2003-03-24   
540-446 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-01-05   
540-657 3 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2008-01-29   
540-699 5 Stafford VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2015-06-27   
571-222 A Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 1 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 4 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-11-16   
571-222 6 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-03-03   
571-222 8 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-222 9 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-229 5 Manassas VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2005-09-12   
571-234 4 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-234 5 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-248 3 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2011-10-24   
571-248 7 Haymarket VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2006-12-09   
571-253 7 Washington Zone 17 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-01-27   
571-254 A Triangle VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-257 0 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-18   
571-257 1 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-09-27   
571-257 2 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-08   
571-257 3 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-10-26   
571-257 4 Washington Zone 8 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2007-11-09   
571-260 A Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-260 2 Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2016-07-31   
571-260 4 Dale City VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2017-06-30   
571-267 3 Herndon VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2012-09-03   
571-279 6 Washington Zone 19 VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2014-11-12   
571-281 A Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236      
571-281 1 Braddock VA 8825 LEVEL 3 COMMUNICATIONS, LLC - VA 236   2004-12-28   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 >>

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

Sponsored by: LES.NET

Like this site? We accept donations via PayPal.